Poor. Halo of locust. The design work feels quasi-random, with no texture alignment. There's an emphasis on large-scale barrel fields and stairways to nowhere. The two cyberdemons you meet are both standing in crushers - why do they do that? Is it part of their fitness regime? The levels are cramped and easy to finish, and would be useless in deathmatch. If it was a Bf109 variant it would be the post-war Avia S199.